KR101935813B1 - Photocatalyst device and air conditioner for vehicle - Google Patents

Abstract

The present invention relates to a photocatalyst apparatus and a vehicle air conditioner having the same. More particularly, the present invention relates to a photocatalyst apparatus and a vehicle air conditioner apparatus for sterilizing and deodorizing an evaporator, The present invention relates to a photocatalytic device capable of exhibiting maximum performance and a vehicle air conditioner including the same.

Description

TECHNICAL FIELD [0001] The present invention relates to a photocatalyst device and a vehicle air conditioner including the photocatalyst device.

The present invention relates to a photocatalyst apparatus and a vehicle air conditioner having the same. More particularly, the present invention relates to a photocatalyst apparatus and a vehicle air conditioner apparatus for sterilizing and deodorizing an evaporator, A photocatalyst device capable of exhibiting maximum performance, and a vehicle air conditioner including the same.

An air conditioner for a vehicle includes an evaporator for cooling the inside of the air conditioner case, an evaporator for cooling the inside of the air conditioner case, an evaporator for cooling the inside of the air conditioner case, A heater core for the heating action, and air blown or heated by the evaporator or the heater core are selectively blown to respective portions of the vehicle interior using a blowing mode switching door.

Japanese Unexamined Patent Publication No. 2549032 (filed on May 30, 1997, entitled Cooling Apparatus with Deodorizer for Automobile) filed on the same date has disclosed a cooling apparatus with a deodorizer for an automobile.

1 is a cross-sectional view showing a conventional cooling apparatus with a deodorizer for an automobile.

1, a conventional air conditioner with a deodorizer for an automobile is provided with an outside air inlet 21 and an inside air inlet 22 in a case 20, and an outside air inlet 21 and an inside air inlet 22 And an intake door 23 for selectively opening and closing is rotatably provided. An actuator 30 is connected to the pivot shaft of the intake door 23 and is controlled by the control means 31.

A blower 25 for blowing the air introduced from the inside and outside air intake ports 21 and 22 to the downstream side is provided on the downstream side of the intake door 23 and the blower 25 is connected to the fan 32 and the fan 32 And a motor 33 for rotating the motor. On the downstream side of the blower 25, an evaporator 26 is installed and cools the air by exchanging heat with air passing therethrough. The air passage 28 on the downstream side of the evaporator 26 is provided with a photocatalytic filter 27 for generating active oxygen by irradiation with a long wavelength light.

The photocatalytic filter 27 generates active oxygen by irradiation of the ultraviolet lamp 29, and the active oxygen oxidizes and decomposes the substance causing the odor to a very low concentration oxidizable compound. The ultraviolet lamp 29 is disposed between the evaporator 26 and the photocatalytic filter 27. On the downstream side of the photocatalytic filter 27, a metal catalyst filter 34 for removing ozone contained in the flowing air is provided. Reference numeral 35 denotes a temperature sensor, 36 denotes a sensor for sensing the odor level, 37 denotes a fan switch, and 24 denotes an air outlet.

However, in the conventional air conditioner with a deodorizer for automobiles, since the ultraviolet lamp 29 used as a light source of photocatalyst contains mercury therein, mercury is harmful to the human body and can not be applied to vehicles due to various environmental requirements There is a problem.

In addition, the photocatalytic filter 27 is installed downstream of the evaporator 26 to adsorb and deodorize the odor generated in the evaporator 26, thereby causing a problem in that the filter must be replaced due to a decrease in the amount of dust overflow. In addition, the conventional cooling apparatus with a deodorizer for an automobile has a problem that the ultraviolet lamp 29 and the photocatalytic filter 27 are separate components, resulting in deterioration in assemblability.

Prior Art 1: Japanese Patent Registration No. 2549032 (filed on May 30, 1997, entitled "

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide an air conditioner which is capable of sterilizing and deodorizing an evaporator, And a vehicle air conditioner including the photocatalyst apparatus.

The photocatalytic device according to the present invention comprises a body 110; A light source unit 120 including a light source for emitting light, a substrate 122 fixed with the light source and emitting heat generated from the light source, and fixed to the body 110; And a support body (131) fixed to the body (110) and generating photocatalytic reaction by light irradiated by the light source unit (120) to generate oxygen radicals and having porosity of 80% or more, And a catalyst layer 130 including a coating layer 132 coated with a catalyst.

Particularly, the catalyst portion is characterized in that the catalyst has a weight of 10% to 30% with respect to the weight of the carrier.

In addition, the catalyst portion is characterized in that at least one support body having a certain thickness is formed.
The body 110 includes a support 112 for supporting the substrate 122 and a space forming part 113 extending from the support part 112 to define a distance between the light source and the catalyst part 130 And a catalyst part 114 extending from the space forming part 113 and fixing the catalyst part 130.
The light source unit 120 may further include a heat dissipation unit disposed in the light source unit 120 to dissipate heat generated in the light source unit 120.
Further, the light source is an LED, and the light is ultraviolet (UV) light or visible light.

In addition, the air conditioning system of the present invention comprises: an air conditioning case in which a vent is formed by forming a space through which air is introduced, An evaporator provided inside the air conditioning case; A heater core disposed at a rear side of the air conditioning case in an air flow direction; And a photocatalyst device.
In addition, the air conditioning case 300, which forms a space through which the introduced air is conveyed and has a vent 310 through which air is introduced into one side and air is discharged to the other side to form an air flow direction from one side to the other side, ; An evaporator 410 provided inside the air conditioning case 300; A heater core 420 provided at a rear side of the evaporator 410 in an air flow direction; And a photocatalyst apparatus (100).

In addition, the photocatalytic device is provided in front of the evaporator in the air flow direction.

Further, the photocatalytic device is provided at the rear side of the evaporator in the air flow direction.

The vehicle air conditioner may further include a mounting hole formed in the airtight case so as to be hollow and closed by the body, and a fixing part for fixing the airtight case to the airtight case is formed in the body.

Further, the photocatalyst device may further include a catalyst supporting portion for supporting the catalytic support portion of the photocatalytic device such that the catalytic portion is located inside the air conditioning case and the space forming portion is located outside the air conditioning case with respect to the outer surface of the air conditioning case. .

In the vehicle air conditioner, the photocatalytic device is mounted on one side of the air conditioner case.

The photocatalyst apparatus of the present invention and the air conditioner for a vehicle including the same are capable of purifying the air introduced into the air conditioning case and sterilizing and deodorizing the evaporator, .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view showing a conventional air-cooling apparatus with a deodorizer for a vehicle. Fig.
2 is an exploded perspective view showing a photocatalytic device according to the present invention.
FIG. 3 is another exploded perspective view of the photocatalytic device according to the present invention. FIG.
4 is a cross-sectional view of a photocatalytic device according to the present invention.
5 is a view showing a first radiating fin provided in a photocatalytic device according to the present invention.
6 is a view showing a second radiating fin provided in the photocatalytic device according to the present invention.
7 is a view showing a catalyst part of a photocatalytic device according to the present invention.
8 is a graph showing a test result of the photocatalytic device according to the present invention.
FIG. 9 is another graph showing a test result of the photocatalytic device according to the present invention in a graph. FIG.
Fig. 10 is a sectional view of the photocatalyst apparatus according to the present invention
11 to 13 are a schematic view and a perspective view showing a vehicle air conditioning system according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a photocatalytic device and a vehicle air conditioner including the same according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of a photocatalytic device according to the present invention, FIG. 3 is another exploded perspective view showing a photocatalytic device according to the present invention, and FIG. 4 is a cross-sectional view of the photocatalytic device according to the present invention, FIG. 5 is a view showing a first radiating fin provided in the photocatalytic device according to the present invention, FIG. 6 is a cross- And FIG. 7 is a view showing a catalyst part of the photocatalyst apparatus according to the present invention.

2 to 7, the photocatalytic device 100 according to the present invention includes a body 110, a light source 120 for irradiating ultraviolet light, and a catalytic unit 130 for generating a photocatalytic reaction.

The body 110 supports the light source unit 120 and the catalytic unit 130 and has a fixing part 111 for fixing the automotive air conditioner 1000 to the air conditioning case 300, In the air conditioning case 300 of FIG.

At this time, the shape of the fixing portion 111 may be variously formed to be fixed to the air conditioning case 300.

The body 110 includes a supporting part 112, a space forming part 113 and a catalyst supporting part 112. The supporting part 112 is a part for supporting the substrate 122 of the light source part 120, The space forming part 113 extends from the supporting part 112 to the catalytic part 130 so that the light emitted from the LED 121 of the light source part 120 is transmitted to the catalyst part 130 And the catalytic portion 130. The catalytic portion 130 may be formed of a metal or the like.

At this time, the space forming part 113 is formed to be inclined from the supporting part 112 so as to be wider in the light irradiation direction of the light source part 120 (the forming direction of the catalyst part 130) The light irradiated from the light source unit 120 mounted on the catalyst unit 130 is guided to the catalyst unit 130 and concentrated on the catalyst unit 130 to increase the amount of the catalyst reaction.

The catalyst trapping portion 114 is a portion where the catalyst portion 130 is provided and the air inside the air conditioning case 300 of the automotive air conditioner 1000 is guided to the catalyst portion 130 side by the catalyst portion 130 Respectively.

Particularly, one surface of the catalytic portion 130 (the opposite surface of the side where the support portion 112 is provided) is formed to be exposed to the inside of the air conditioning case 300. At this time, the catalyst addition portion 114 may include a step portion 114a which protrudes inward to support the catalyst portion 130 adjacent to the space forming portion 113. [

The catalyzer 130 may be slidably coupled to the catalytic converter 130 such that the catalytic converter 130 can be detached from the catalytic converter 130 so that the catalytic converter 130 can be mounted and checked easily. And more various forms capable of being desorbed.

In addition, the body 110 may have a circular shape and various shapes including a rectangular shape in cross section.

The light source unit 120 is fixed to the body 110 and emits ultraviolet light. The light source unit 120 includes a light emitting diode (LED) 121 and a substrate 122 on which the LED 121 is fixed .

The LED 121 irradiates UVA (Ultra Violet-A) light or UVV (Ultra Violet-C) light having a wavelength of 400 nm or less and solves the problem of mercury use which has been a problem in conventional mercury lamps, Effective light irradiation is possible.

UVA is advantageous in terms of cost because it is relatively inexpensive and effectively activates the photocatalytic reaction of the photocatalyst carrier.

UVC is relatively expensive but can act to activate the photocatalytic reaction and at the same time to perform its own sterilizing function to improve sterilization efficiency.

At least two light sources 120 may be provided corresponding to the size of the catalyst unit 130.

Means that at least two LEDs 121 and its substrate 122 are provided and that at least two LEDs 121 are provided on one substrate 122 And the like.

Of course, when two or more of the LEDs 121 are provided, all the LEDs 121 that emit UVA (Ultra Violet-A) and UVC (Ultra Violet-C) may be provided.

The catalytic unit 130 generates photocatalytic reaction by the light irradiated by the light source unit 120 and generates oxygen radicals.

The catalytic unit 130 generates a photocatalytic reaction by the light irradiated from the light source unit 120, and the contaminants introduced into the air conditioning case 300 by the oxidizing action of the oxygen radical generated in the photocatalytic reaction, Thereby removing fungi, various pollutants, and odors in the fuel cell 410.

More specifically, when the light emitted from the light source unit 120 is absorbed by the catalytic unit 130, the electrons of the valence band (VB), which is filled with electrons, absorb the light energy, (Conduction Band: CB).

Hole, the empty electron spot of the valence band, oxidizes the water molecules on the surface, and the oxidized water molecules form OH radicals.

In addition, an excited electron, excited by a conduction band, reacts with oxygen to produce a strong oxidizing oxygen radical.

Meanwhile, the catalyst unit 130 may include a coating layer 132 coated with a carrier 131, a cocatalyst, and an acidic additive added thereto to carry a catalyst, which is liquefied in a gel state, on the carrier 131 .

The support body 131 includes a plurality of pores therein. The support body 131 may have various structures including a mesh, and may be formed of a material having metal or elastic characteristics.

At this time, the carrier 131 is formed to have a porosity (porosity with respect to the entire volume) of at least 80% and a thickness of 5 mm to 50 mm.

In addition, the support body 131 has a thickness of 5 mm and may be formed of at least one layer.

The coating layer 132 comprises 10% to 30% of the total weight of the carrier 131 in the form of a gel-liquefied catalyst added with a cocatalyst and an acidic additive.

And titanium oxide particles 10 to 60 nanometers in particle size as the catalyst.

Titanium oxide (TiO ₂ ), which is used as a photocatalyst, absorbs ultraviolet rays of 400 nm or less and generates oxygen radicals. The generated oxygen radical decomposes organics into safe water and carbon dioxide.

The titanium oxide is nanoparticles, and a large amount of oxygen radicals can be produced even by using a light source having a relatively weak ultraviolet wavelength.

Therefore, it has excellent decomposing ability of organic matter, has persistent durability and stability against environmental change, and has a semi-permanent effect.

In addition, a large amount of oxygen radical can remove various substances such as odors, bacteria and the like as well as organic substances.

Since the catalytic portion 130 has a surface area value of nanoparticulate titanium oxide of 330 m ² / g or more, the number of particles that receive light energy per area is much larger than that of ordinary titanium oxide, .

At this time, the co-catalyst may be alumina. In this case, the supporting force of the catalytic portion 130 can be further improved and the fixing ability of the carrier 131 can be increased.

5 to 6, the photocatalytic device 100 according to the present invention may further include a heat dissipation unit 141 and 142 for dissipating heat generated in the light source unit 120, And may include a radiating fin 141.

The first heat radiating fin 141 is provided on the substrate 122 to radiate heat and the light source 120 emits heat generated from the LED 121 and the substrate 122 to maintain a high light intensity. The first radiating fins 141 are formed in a region other than a region irradiated with light from the LED 121 to the catalyst portion 130.

The first radiating fins 141 may be formed in various shapes including a fin and a plate shape. When the first radiating fins 141 are in the form of a plate, the first radiating fins 141 may be formed on one side of the substrate 122 having the LED 121 Air flow direction.

The space 121 is formed between the one side of the substrate 122 having the LED 121 inside the body 110 and the catalyst part 130 and the space There is a region irradiated with light by the catalytic unit 130, and the first radiating fin 141 is provided to dissipate heat through the air flowing in this region.

5, the first heat-radiating fins 141 do not protrude from the center region of the LED 121 in the left and right direction (air flow direction) So that heat can be easily released without blocking light emitted from the LED 121. [

Unlike the light source unit 120 including the LED 121 formed in the photocatalyst apparatus 100 according to the present invention, even when two or more LEDs 121 are provided, It is possible to freely form the region except the region irradiated with the light.

6, the heat dissipation unit may include a second heat dissipation fin 142 disposed on the opposite side of the substrate 122 on which the LED 121 is mounted.

The second radiating fins 142 are formed on the opposite side of the substrate 122 on which the first radiating fins 141 and the LEDs 121 are provided and may be formed on the substrate 122, And the heat generated from the light source unit 120 is emitted.

Particularly, when the second radiating fins 142 are formed on the substrate 122, the body 110 has a certain region of the support 112 so that the second radiating fins 142 are inserted and protruded to the outside, A hollow portion 112a may be formed.

The photocatalyst 100 of the present invention can effectively emit heat generated from the LED 121 by having one or both of the first radiating fin 141 and the second radiating fin 142, High durability can be maintained, and sterilization and deodorization performance can be continuously maintained.

The first radiating fins 141 and the second radiating fins 142 are closely attached to both sides of the substrate 122 and are configured to fix the substrate 122 to the supporting portion 112 of the body 110 It may be concluded at once.

In addition, the substrate 122 of the photocatalyst 100 according to the present invention may be a radiator plate, and the substrate 122 itself may be a radiator.

<Optimal Combination Test of Factors for Maximum Performance of Photocatalyst Apparatus>

In order to obtain the optimal combination of factors for the maximum performance of the photocatalytic device 100 according to the present invention, a performance evaluation test for each combination of factors was performed.

First, the photocatalyst apparatus of the present invention was prepared in an acrylic test box and a test gas was injected. At this time, the test gas to be injected was used as trimethylamine, and the analysis of trimethylamine was carried out using a gas analyzer using infrared spectroscopy (FT-IR).

[Table 1]

As shown in Table 1, the performance of the photocatalytic device 100 is evaluated by comparing the porosity and thickness of the carrier 131, the weight of the catalyst, and the LED 121 of the light source unit 120, ) Was designated as the test factor.

The degree of porosity of the carrier 131 depends on the number of times the catalyst is carried, the permeability, and the permeability of the light emitted from the light source 120 when the carrier is composed of at least two layers, 131 increases in accordance with the volume of the carrier 131, and when the catalyst-containing fragrance is high, the contact area with the ultraviolet light increases and the generation of radicals increases.

At this time, the support body 131 has a thickness of 5 mm to 15 mm, and the support body has a thickness of 5 to 15 mm.

In addition, the weight of the catalyst affects the radical generation performance depending on the type of additive and cocatalyst and mixing ratio, and affects the photocatalytic reaction depending on the particle size of the titanium oxide.

In the case of the number of LEDs 121, the catalytic reaction area increases depending on the quantity of the light source, which affects the reaction intensity and affects radical generation.

As a result of the tests conducted in consideration of the characteristics of these factors, as shown in Figs. 8 to 9 and Table 2 below, it was confirmed that the carrier 131 having pores of 94% and 5 mm had three layers, The weight of the catalyst having the weight of 20% based on the weight of the LED 131 and the combination of the three LEDs 121 showed the maximum performance.

However, in the case of the combination of one LED, the manufacturing cost of the photocatalyst device is increased due to the combination of three LEDs.

[Table 2]

FIG. 10 is a sectional view of a photocatalyst apparatus according to the present invention, and FIGS. 11 to 13 are a schematic view and a perspective view showing a vehicle air conditioner according to the present invention.

10 to 13, the vehicle air conditioner 1000 of the present invention includes an air conditioning case 300, an evaporator 410, a heater core 420, and a photocatalyst device 100.

In the air conditioning case 300, the inflow air is transferred, and a vent 310 through which the air is discharged is formed, forming a space for mounting the evaporator 410 and the heater core 420.

More specifically, the air conditioning case 300 is formed with a vent 310 through which the temperature-controlled air is evaporated by the evaporator 410 and the heater core 420 to the interior of the vehicle.

The vent 310 includes a face vent 310, a defrost vent 310, and a floor vent 310.

The face vent 310 discharges air to the front side (front seat) of the vehicle interior. The defrost vent 310 discharges air toward the windshield of the vehicle interior, and the floor vent 310 The face vent 310, the defrost vent 310, and the floor vent 310 are adjusted in opening through respective mode doors 310d.

A fan 214 for blowing air may be provided on the air inlet side of the air conditioner case 300 and the indoor air inlet 211 and the outdoor air inlet 212 may be selectively When the fan 214 is operated by opening and closing, the indoor air or the outside air is transferred to the air conditioning case 300.

In more detail, the inside air inlet 211 communicates with the inside of the vehicle, so that the outside air inlet 212 communicates with the outside of the vehicle, and the outside air flows into the outside air inlet 212.

The inside / outside switching door 213 is provided inside the inflow duct to open / close the inside air inlet 211 and the outside air inlet 212. The inside / outside switching door 213 operates according to the setting of the vehicle occupant, Or the like are selectively introduced.

The evaporator 410 and the heater core 420 are disposed in the air flow direction so that the evaporator 410 and the heater core 420 can be cooled by the cooler Respectively.

The air conditioning case 300 is provided with a temperature control door 320 for determining the degree of the air passing through the evaporator 410 through the heater core 420.

In other words, the temperature control door 320 adjusts the opening degree of the air passage through which the air passed through the evaporator 410 passes through the heater core 420 and the air passage not passing through the heater core 420.

At this time, the photocatalyst device 100 has the above-described characteristics and is provided at the front side of the evaporator 410 in the air flow direction to sterilize and deodorize the evaporator 410. (See Fig. 11)

In addition, the photocatalyst device 100 is provided at the rear side of the evaporator 410 in the air flow direction to sterilize and deodorize the evaporator 410, and the oxygen radicals generated in the photocatalyst device 100 It is possible to introduce air into the interior of the vehicle and to clean the interior of the vehicle. (See Fig. 12)

The air conditioning apparatus 1000 of the present invention is mounted on one side of the air conditioning case 300 so that the photocatalytic device 100 can be easily attached and detached, And the air flow inside the air conditioner case 300 is prevented from being disturbed by the photocatalyst device 100.

Particularly, in order to fix the air conditioner case 300 and the photocatalytic device 100, a mounting hole 300a is formed in which a certain area of the air conditioner case 300 is hollow and closed by the body 110, A fixing portion 111 is formed on the body 110.

10, the fixing part 111 is hollow in a certain area and threaded in a hollow inner circumferential surface. The air conditioning case 300 is also hollow in a shape corresponding to the fixing part 111, And an example in which threads are formed on the hollow inner peripheral surface and fixed by separate fastening means 500 is shown.

At this time, it is preferable that the fixing portion 111 protrudes from the side of the space forming portion 113 on which the catalyst supporting portion 112 is formed.

That is, the catalytic unit 130 is positioned inside the air conditioner case 300 with respect to the outer surface of the air conditioner case 300, and the space forming unit 113 is positioned outside the air conditioner case 300.

In the vehicle air conditioner 1000 of the present invention, the catalytic unit 130 for purifying the air is positioned inside the air conditioner case 300 to effectively purify the air, and the degree of protrusion into the air conditioner case 300 Thereby minimizing disturbance of airflow.

The space forming part 113 is located outside the air conditioning case 300 with respect to the outer surface of the air conditioning case 300 so that the photocatalytic device 100 is connected to the space forming part 113 through a drain hole 113a formed in the space forming part 113, The moisture inside can be easily discharged to the outside. (The left side in FIG. 10 is outside the air conditioner case 300, and the right side in FIG. 10 is inside the air conditioner case 300)

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1000: photocatalyst device
110: Body
111:
112: Support part 112a:
113:
114: catalyst addition portion 114a:
120: Light source
121: LED 122: substrate
130:
131: Carrier 132: Coating layer
141: first radiating fin 142: second radiating fin
200: blower
211: Air inlet port 212: Outer air inlet
213: internal / external switching door 214: blowing fan
300: air conditioning case 300a: mounting hole
310: vent 310d: mode door
320: Temperature control door
410: Evaporator
420: heater core
500: fastening means
1000: Car air conditioner

Claims (12)

A body 110;
A light source unit 120 including a light source for emitting light, a substrate 122 fixed with the light source and emitting heat generated from the light source, and fixed to the body 110; And
A carrier 131 fixed to the body 110 and generating photocatalytic reaction by light emitted from the light source 120 to generate oxygen radicals and having a porosity of 80% And a catalyst part (130) comprising a coating layer (132) coated with a catalyst,
The body 110
A support portion 112 for supporting the substrate 122 and a support portion 112 extending from the support portion 112 to form a distance between the light source portion 120 and the catalyst portion 130 and extend in the light irradiation direction of the light source portion 120 A catalyst accommodating portion 114 extending from the space forming portion 113 to fix the catalyst portion 130 and a heat releasing portion 112 for emitting heat generated from the light generating portion 120. [ And a heat-
The heat dissipation unit is formed between the light source unit 120 and the catalytic unit 130 and is formed in a region other than a region irradiated with light from the light source unit 120, And a first radiating fin (141) radiating heat through the air flowing in the space between the first radiating fin (130) and the second radiating fin (141).
The method according to claim 1,
The catalyst portion
Wherein the catalyst has a weight of 10% to 30% with respect to the weight of the carrier.
3. The method of claim 2,
The catalyst portion 130
Wherein at least one layer of the carrier (131) having a predetermined thickness is stacked.
delete delete The method according to claim 1,
Wherein the light source is an LED,
Wherein the light is ultraviolet (UV) light or visible light.
An air conditioning case 300 forming a space through which the introduced air is conveyed, a vent 310 through which air is introduced into one side and air is discharged to the other side to form an air flow direction from one side to the other side;
An evaporator 410 provided inside the air conditioning case 300;
A heater core 420 provided at a rear side of the evaporator 410 in an air flow direction; And
A vehicle air conditioning system comprising a photocatalyst device (100) according to any one of claims 1 to 3 and 6.
8. The method of claim 7,
The photocatalyst apparatus 100 includes:
Is installed on the front side of the evaporator (410) in the air flow direction.
8. The method of claim 7,
The photocatalyst apparatus 100 includes:
(410) in the direction of the air flow.
8. The method of claim 7,
The vehicle air conditioning system (1000)
A mounting hole 300a is formed in which a certain area of the air conditioning case 300 is hollow and is closed by the body 110,
And a fixing part (111) for fixing the air conditioning case (300) to the body (110) is formed on the body (110).
11. The method of claim 10,
The photocatalyst apparatus 100 includes:
The catalytic unit 130 is positioned inside the air conditioner case 300 and the space forming unit 113 is positioned outside the air conditioner case 300 on the basis of the outer surface of the air conditioner case 300 111) protrudes from the side of the space forming portion (113) where the support portion (112) is formed.
8. The method of claim 7,
The vehicle air conditioning system 1000 includes:
Wherein the photocatalyst device (100) is mounted on one side of the air conditioner case (300).

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